Gem-Knights Deck #773902 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 57/100 (±8 · Confidence: Medium)

• Primary strategy: Combo
• Secondary strategies: Toolbox, Midrange
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Fusion Summon Gem-Knight Lady Brilliant Diamond (3400 ATK) or Gem-Knight Master Diamond (2900+ ATK) via Brilliant Fusion / Gem-Knight Dispersion, then close with the Fusion board; Gem-Knight Topaz double attack and Golden Cloud Beast - Malong synchro beats once the board is established
• Turn 1 (going first): Search with Gem-Knight Quartz, Gem-Knight Nepyrim, Gem-Armadillo or Phantom Quartz, then convert into a Brilliant Fusion or Dispersion Fusion Summon (Inferred from card text)
• Turn 2 (going second): Use hand traps (Droll and Lock Bird, Infinite Impermanence, Maxx C, Ghost Ogre and Snow Rabbit) to interrupt the opponent, then rebuild with the same fusion route
• Recovery: Recur Gem-Knight Fusion from the GY, banish Gem-Knight cards from the GY for Hollowcore's effect, and re-run Gem-Knight Dispersion once per turn (Inferred from card text)
• After siding: None: the format is single-game with a 0-card Side Deck, so there is no post-side plan

Why it scores here

The score comes from the system, not from averaging card scores. Twelve copies of engine starters (Brilliant Fusion, Gem-Knight Dispersion, Gem-Knight Quartz, Gem-Knight Nepyrim) plus 14 searcher-text cards give about an 85% chance of at least one engine starter in the opening five (hypergeometric, Inferred). A dense interaction suite (two Infinite Impermanence, two Droll and Lock Bird, Maxx C, Ghost Ogre and Snow Rabbit, two Ultimate Slayer, Raigeki, Heavy Storm, Harpie's Feather Duster, Lightning Storm) carries the deck through disruption and the going-second hand. Closing power is high when the fusion line lands, led by Lady Brilliant Diamond at 3400 ATK and Master Diamond at 2900+. The deck is held back by a complete absence of recorded boards (the ceiling and median are text-only), by several conditional spells that brick, and by a single-game format with no side deck, which scores D12 low by structure. Archetype popularity earned no points, and the 2 Mulcharmy draw monsters are scored as an engine conflict rather than as support.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 61.6, Going First ≈ 66, Going Second ≈ 65, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: Engine conflict / off-archetype draw engine (-2); Unrecoverable choke point (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.85 · key two-card combo ≈ — · full-brick estimate ≈ — (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Dense interaction suite with hand traps and board breakers
• Large Fusion ceiling with high-ATK closers
• Searcher redundancy across Quartz, Nepyrim, Armadillo and Phantom Quartz
• Legal list with copy limits and size rules satisfied

Weaknesses

• No recorded boards, so floor and median are unmeasured
• Conditional spells (Triple Tactics, Scatter Fusion, Ultimate Slayer) brick often
• Off-archetype Mulcharmy monsters dilute the engine
• No side deck and no post-side plan

Critical choke points

• Brilliant Fusion or Dispersion must be drawn or searched to access the Fusion Summon route
• A fusion starter needs a specific Gem-Knight Fusion monster in the Extra Deck

Recommended changes

Evidence & confidence

• Verified: Legal status, size counts (40/15/0) and copy limits: Limited 1-copy cards (Feather Duster, Heavy Storm, Maxx C) and Semi-Limited Droll and Lock Bird (2 copies) are within limit; Deck composition and copy histogram match the card list; Hypergeometric probabilities recomputed and consistent with the evidence
• Inferred: D1 starter access and bootstrap estimates; Brick and conditional-spell dead-card risk; Interaction quality and going-second hand-trap access; Fusion ceiling from card text
• Provisional: Meta power (no dated sample); Matchup and format fit (no tournament link)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference usage_statistics in_this_deck flags ignore the Extra Deck: 19 of 19 core cards are present in the card list, so core_present_pct 47.4 and missing_core are preprocessor artifacts Archetype string mismatch: Gem-Knight cards export as 'Gem-', so exact-name purity reads 0% No tournament link: archetype meta-share and per-pilot match record absent No win-rate telemetry in YGOVN; meta power is Provisional Master Duel single-game format: no post-side data exists for D12